Oh my god he so is! Let's go take back my brother's wife, who may have left of her own accord, even if it means a generation of war. Then let's go ahead and kill my daughter so that we can have good winds for our voyage to the aforementioned protracted war. And now let's kidnap this girl who is the daughter of a priest of Apollo and I'll rape her all the time, because there's no way that could go poorly. Oh, I had to give her back to her father to stop Apollo from killing everyone with a plague? Better take Achilles' rape slave then, there's no way he'll get pissed off about that. Oh wait, he stopped fighting in this useless fucking war and now the Trojans are winning all of a sudden? Whoops, better convince Patroclus to don Achilles' armor to make the Trojans afraid (that might actually have been Odysseus' idea, it's been a while since I read the Iliad). Oh, Patroclus is dead and Achilles has gone mad with grief and is dragging Hektor's body around behind his chariot? Fucking oops.

And then at the end Agamemnon goes home and gets wrapped in a curtain and stabbed to death by his pissed-off wife who I think was also cheating on him, because who the fuck wouldn't when your dumbass husband goes to war for ten years for basically no reason?